Structures of a novel 2-arylbenzofuran derivative and two flavone derivatives from the cultivated mulberry tree (Morus lhou Koidz.).
1985; Pharmaceutical Society of Japan; Volume: 33; Issue: 10 Linguagem: Inglês
10.1248/cpb.33.4288
ISSN1347-5223
AutoresToshio Fukai, Yoshio Hano, Kazuhiro Hirakura, Taro Nomura, Jun Uzawa,
Tópico(s)Natural product bioactivities and synthesis
ResumoA new 2-arylbenzofuran derivative, mulberrofuran H and two isoprenylated flavones, kuwanons S and T, were isolated from the ethyl acetate extract of the root bark of cultivated mulberry tree (Japanese name "Roso, "a cultivated variety of Morus lhou KOIDZ.). The structures of mulberrofuran H and kuwanons S and T were shown to be 1, 2, and 3, respectively, on the basis of spectral evidence. Mulberrofuran H can be regarded biogenetically as a variation of a Diels-Alder type adduct of a chalcone derivative and a dehydroprenyl-2-arylbenzofuran derivative.
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